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426132891 = 32237692677
BaseRepresentation
bin11001011001100…
…100010110011011
31002200211210102200
4121121210112123
51333042223031
6110141301243
713363032642
oct3131442633
91080753380
10426132891
111a95a4a48
12ba864823
136a391352
1440848359
15276268e6
hex1966459b

426132891 has 24 divisors (see below), whose sum is σ = 643362720. Its totient is φ = 271282176.

The previous prime is 426132887. The next prime is 426132907. The reversal of 426132891 is 198231624.

It is not a de Polignac number, because 426132891 - 22 = 426132887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426132871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157845 + ... + 160521.

It is an arithmetic number, because the mean of its divisors is an integer number (26806780).

Almost surely, 2426132891 is an apocalyptic number.

426132891 is a deficient number, since it is larger than the sum of its proper divisors (217229829).

426132891 is a wasteful number, since it uses less digits than its factorization.

426132891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475 (or 3472 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 426132891 is about 20642.9864845182. The cubic root of 426132891 is about 752.5147532639.

The spelling of 426132891 in words is "four hundred twenty-six million, one hundred thirty-two thousand, eight hundred ninety-one".

Divisors: 1 3 9 23 69 207 769 2307 2677 6921 8031 17687 24093 53061 61571 159183 184713 554139 2058613 6175839 18527517 47348099 142044297 426132891